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Experimental design

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I need help in choosing something for this project, creating the hypothesis and the proposal.

Choose a substrate (material for microbial growth) and determine how many samples of this material you will need. Keep in mind that some materials smell REALLY BAD when they decay. Choose something you can stand for 5 weeks.

Create a hypothesis to describe how microbial growth will be affected by your variable. State what your hypothesis predicts.

Write a proposal for your experiment including a research question, hypothesis, predictions, materials to be used, methods of setup and observation, data collection and analysis of results.

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Microbes (bacteria, fungi, mold etc.) grow on any number of organic materials. Potential substrates include bread, cheese, apple pieces, orange peel etc. Variables affecting microbial growth could include temperature, gas availability, moisture, presence of anti-microbial agents (such as anti-fungal agents or antibiotics) etc.

Proposed experiment:
Examine the impact of temperature range on microbial growth and diversity.

Substrate: piece of bread

Variable: ...

Solution Summary

Detailed answer describing the design of a scientific experiment identifying the research question, hypothesis, predictions, materials needed, method of set up and observation, data collection and analysis of results.

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Program Design and Evaluation - Quasi-Experimental Designs

Evaluator's Toolbox: Quasi-Experimental Designs.

Quasi-experimental designs are excellent research designs to use in evaluative research such as program evaluation. The director of training at GlobalEd would like to complete a study using a quasi-experimental design and needs your help. His hypothesis is as follows: Multicultural training will increase instructor's understanding of how culture can contribute to an appearance of a behavior problem. Your Acme Corporation Behavioral Health supervisor thought that a pretest/post test quasi-experimental design would be ideal to test his hypothesis. In this discussion, we will talk about the process the training director should use to complete his study.

What are some of the steps for completing this quasi-experimental study?

When responding to other Acme Corporation Behavioral Health interns comment on the order of the steps as well as if you agree or disagree. By the end of the discussion, there should be a clear picture of what the director should do, step by step.

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